April 20 » France declares war against the "King of Hungary and Bohemia", the beginning of French Revolutionary Wars.
April 21 » Tiradentes, a revolutionary leading a movement for Brazil's independence, is hanged, drawn and quartered.
May 17 » The New York Stock Exchange is formed under the Buttonwood Agreement.
May 21 » A lava dome collapses on Mount Unzen, near the city of Shimbara on the Japanese island of Kyūshū, creating a deadly tsunami that kills nearly 15,000 people.
September 20 » French troops stop an allied invasion of France at the Battle of Valmy.
September 22 » Primidi Vendémiaire of year one of the French Republican Calendar as the French First Republic comes into being.
Day of marriage February 6, 1818
The temperature on February 6, 1818 was about 1.0 °C. Wind direction mainly southwest. Weather type: betrokken mist. Source: KNMI
This page is only available in Dutch.
De Republiek der Verenigde Nederlanden werd in 1794-1795 door de Fransen veroverd onder leiding van bevelhebber Charles Pichegru (geholpen door de Nederlander Herman Willem Daendels); de verovering werd vergemakkelijkt door het dichtvriezen van de Waterlinie; Willem V moest op 18 januari 1795 uitwijken naar Engeland (en van daaruit in 1801 naar Duitsland); de patriotten namen de macht over van de aristocratische regenten en proclameerden de Bataafsche Republiek; op 16 mei 1795 werd het Haags Verdrag gesloten, waarmee ons land een vazalstaat werd van Frankrijk; in 3.1796 kwam er een Nationale Vergadering; in 1798 pleegde Daendels een staatsgreep, die de unitarissen aan de macht bracht; er kwam een nieuwe grondwet, die een Vertegenwoordigend Lichaam (met een Eerste en Tweede Kamer) instelde en als regering een Directoire; in 1799 sloeg Daendels bij Castricum een Brits-Russische invasie af; in 1801 kwam er een nieuwe grondwet; bij de Vrede van Amiens (1802) kreeg ons land van Engeland zijn koloniën terug (behalve Ceylon); na de grondwetswijziging van 1805 kwam er een raadpensionaris als eenhoofdig gezag, namelijk Rutger Jan Schimmelpenninck (van 31 oktober 1761 tot 25 maart 1825).
January 2 » The British Institution of Civil Engineers is founded by a group of six engineers; Thomas Telford would later become its first president.
February 12 » Bernardo O'Higgins formally approves the Chilean Declaration of Independence near Concepción, Chile.
March 30 » Physicist Augustin Fresnel reads a memoir on optical rotation to the French Academy of Sciences, reporting that when polarized light is "depolarized" by a Fresnel rhomb, its properties are preserved in any subsequent passage through an optically-rotating crystal or liquid.
April 4 » The United States Congress, affirming the Second Continental Congress, adopts the flag of the United States with 13 red and white stripes and one star for each state (20 at that time).
July 29 » French physicist Augustin Fresnel submits his prizewinning "Memoir on the Diffraction of Light", precisely accounting for the limited extent to which light spreads into shadows, and thereby demolishing the oldest objection to the wave theory of light.
December 13 » Cyril VI of Constantinople resigns from his position as Ecumenical Patriarch.
Day of death April 22, 1869
The temperature on April 22, 1869 was about 17.8 °C. The air pressure was 1 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 39%. Source: KNMI
From June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
May 4 » The Naval Battle of Hakodate is fought in Japan.
May 26 » Boston University is chartered by the Commonwealth of Massachusetts.
July 10 » Gävle, Sweden, is largely destroyed in a fire; 80% of its 10,000 residents are left homeless.
August 2 » Japan's Edo society class system is abolished as part of the Meiji Restoration reforms.
September 24 » Gold prices plummet after President Grant orders the Treasury to sell large quantities of gold after Jay Gould and James Fisk plot to control the market.
October 5 » The Hennepin Island tunnel collapses during construction, nearly destroying St. Anthony Falls.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I164936.php : accessed October 20, 2026), "Sietze Alberts Sintniklaas (1792-1869)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.